Struts2-Ajax无刷新显示信息

Struts2-Ajax无刷新显示信息，以本项目为例就是使用div标签来生成div元素，而该div元素并不是是静态的内容，而是通过div标签中的href来动态的从server中获取div元素的内容。

而div标签中的delay则是延迟载入的意思，本项目中是採用了延迟3秒载入。

项目须要的包文件：

commons-fileupload-1.2.1.jar
commons-io-1.3.2.jar
commons-logging-1.1.jar
freemarker-2.3.13.jar
log4j-1.2.17.jar
ognl-2.6.11.jar
struts2-core-2.1.6.jar
struts2-dojo-plugin-2.1.8.1.jar
xwork-2.1.2.jar

Struts2Test.java源代码：

package com.test;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
public class Struts2Test extends ActionSupport{
	
	List<Object> list=new ArrayList<Object>();

	public List<Object> getList() {
		return list;
	}

	public void setList(List<Object> list) {
		this.list = list;
	}

	@Override
	public String execute() throws Exception {
		// TODO Auto-generated method stub
		for(int i=0;i<3;i++){
			Map<String,Object> map=new HashMap<String, Object>();
			map.put("userName", "admin"+i);
			map.put("password", "123456"+i);
			map.put("name", "zhangsan"+i);
			list.add(map);
		}
		return "success";
	}
}

struts.xml源代码:

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
	"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
	"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="default" extends="struts-default" namespace="/">
	<action name="sa" class="com.test.Struts2Test" >
		<result name="success">/success.jsp</result>
	</action>
</package> 
</struts>

web.xml源代码：

<?xml version="1.0" encoding="UTF-8"?
>
<web-app id="WebApp_9" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
  <filter>
  	<filter-name>struts2</filter-name>
  	<filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
  </filter> 
  <filter-mapping>
  	<filter-name>struts2</filter-name>
  	<url-pattern>/*</url-pattern>
  </filter-mapping>
  
</web-app>

index.jsp源代码：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags" %>
<%@taglib prefix="sx" uri="/struts-dojo-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
  <head>
  	<!-- 以下的头信息不可或缺，否则程序会报错！
 -->
  	<!-- 不加以下的头信息。错误信息为：ReferenceError: djConfig is not defined -->
  	<s:head/>
  	<sx:head parseContent="true"/>
  	<!-- 上面的头信息不可或缺。否则程序会报错！ -->
    <base href="<%=basePath%>">
    <title>My JSP 'index.jsp' starting page</title>
  </head>
  <body>
  	<s:url id="te" value="/sa.action"></s:url>
  	<sx:div href="%{te}" delay="3000">
	  	<div align="center">
	  		<p>此处内容即将显示</p>
	  	</div>
  	</sx:div>
  </body>
</html>

success.jsp源代码：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="s" uri="/struts-tags"%>
<%@taglib prefix="sx" uri="/struts-dojo-tags"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<html>
  <head>
  	<s:head/>
  	<sx:head parseContent="true"/>
    <base href="<%=basePath%>">
    <title>SUCCESS</title>
  </head>
  <body>
    <div align="center">
    	<table border="1">
    		<thead>
    			<tr>
    				<td>
    					<div>username</div>
    				</td>
    				<td>
    					<div>密码</div>
    				</td>
    				<td>
    					<div>真实姓名</div>
    				</td>
    			</tr>
    		</thead>
    		<tbody>
    			<s:iterator value="list">
    				<tr>
    					<td>
    						<div><s:property value="userName"/></div>
    					</td>
    					<td>
    						<div><s:property value="password"/></div>
    					</td>
    					<td>
    						<div><s:property value="name"/></div>
    					</td>
    				</tr>
    			</s:iterator>
    		</tbody>
    	</table>
    </div>
  </body>
</html>

执行的结果：

3秒后显示的结果：